I don't think 50mg is considered very high. You may not loose weight, I started drinking giant icees two to 3 times a day to get weight back on . After coming off of it for a few weeks, when I went back on it, I didn't have anymore problems with weight loss. I could not function because of the headaches, so it was worth the second try and luckily it worked out. You never know what or if you'll exsperiances side effects, the only way you'll know is if you try it. Let me know if you try it and what results you get. Good luck!